当您连接外部USB设备时，由于不兼容问题，它可能无法在您的系统上运行。在这种情况下，您可能会遇到USB不断断开和重新连接的问题。因此^(Hence)，如果您正在寻找解决相同问题的解决方案，那么您来对地方了！我们提供了一个完美的指南来帮助您修复Windows 10上的^{(Windows 10)}USB不断断开连接的问题。

USB驱动器的优点^{(Advantages of USB Drive)}

由于以下原因，能够将计算机连接到外部USB驱动器非常重要：^(USB)

• 外接U盘可以保存^(save) 个人文件^{(personal files)}、工作文件、游戏文件。^{(work files, and game files.)}
•  如果您想在另一台计算机上启动Windows 操作系统^{(Windows OS)}， USB 驱动器还可以存储 Windows 安装文件。^{(store Windows installation files)}
• USB 驱动器也用作系统备份存储^{(used as system backup storage)}。如果您丢失了计算机上的数据，那么备份对于恢复这些丢失的文件至关重要。

如何修复 USB 在 Windows 10 上不断断开和重新连接
^{(How to Fix USB Keeps Disconnecting and Reconnecting on Windows 10 )}

此问题背后可能有多种原因，例如：

• USB 端口故障：^{(Malfunctioning USB Port:)}当您的 PC 上的USB端口出现故障时，可能会导致USB不断断开并重新连接的问题。
• 过时的 USB 驱动程序：^{(Outdated USB Drivers:)}如果您的 Windows PC 中的当前驱动程序与系统文件不兼容或过时，那么您可能会面临上述错误。
• 启用的 USB 挂起设置：^{(Enabled USB Suspend Settings: )}启用的USB 挂起^{(USB Suspend)}设置将从计算机中弹出所有未使用的USB设备。
• 过时的 Windows 操作系统：^{(Outdated Windows OS:)}在某些情况下，您设备上运行的Windows操作系统可能已经过时。
• 省电选项：^{(Power Saving Options:)}当电源不足时，USB驱动器会关闭以节省能源。
• 损坏的系统文件：^{(Corrupt System Files: )}该问题也可能是由 PC 上损坏的系统文件引起的。

已根据难度级别编制和排列了修复USB不断断开和重新连接问题的方法列表。因此，请一一实施，直到找到适用于 Windows 7 或 Windows 10 PC 的解决方案。

方法 1：重启你的电脑
^{(Method 1: Restart Your PC )}

重新启动Windows PC 有助于解决常见故障和错误。因此^(Hence)，您应该先尝试这个简单的修复。

1. 单击 开始菜单。^{(Start menu.)}

2. 现在，选择 位于底部的电源图标。^{(Power icon)}

注意：^{(Note: )}电源图标^(Power)位于Windows 8的顶部和^{(Windows 8)}Windows 10的底部。

3. 在这里，点击Restart，如图所示。

方法 2：使用不同的 USB 端口^{(Method 2: Use a Different USB Port)}

您当前使用的端口可能出现故障并导致USB不断断开和重新连接问题。因此，请执行以下基本检查：

1.从当前端口拔下 USB 并将其^{( Remove)}插入^{( plug it into another USB port)}PC 上的另一个 USB 端口。

2.将另一个正常工作的 USB 连接^{(Connect another working USB)}到 PC 的不同端口，并检查是否出现相同的问题。这样就可以判断端口是否有故障，需要维修或更换。

3.将 USB 连接到另一台计算机^{(Connect the USB to another computer)}以检查它是否正常工作。

另请阅读：^{(Also Read:)} USB 2.0、USB 3.0、eSATA、Thunderbolt 和 FireWire 端口之间的区别^{(Difference between USB 2.0, USB 3.0, eSATA, Thunderbolt, and FireWire ports)}

方法 3：运行 Windows 疑难解答^{(Method 3: Run Windows Troubleshooter)}

很少有用户报告说可以通过在Windows^{(Windows 7,8)} 7、8、8.1 或 10中运行内置的疑难解答来解决此问题。疑难解答的功能包括：

• 关闭所有Windows 更新^{(Windows Update)} 服务^(Services)。
• 将 C:WindowsSoftwareDistribution 文件夹重命名为 C:WindowsSoftwareDistribution.old
• 擦除系统中存在的所有下载缓存。
• 重新启动Windows 更新^{(Windows Update)} 服务^(Services)。

按照给定的说明运行它：

1. 按Windows   + R键启动运行对话框^{(Run Dialog Box)}。

2. 键入msdt.exe -id DeviceDiagnostic并单击OK，如图所示。

3. 单击硬件和设备疑难解答^{(Hardware and Devices troubleshooter)}上的下一步^{(Next )}。

4. 按照屏幕上的说明，^{(on-screen instructions, )}然后重新启动^(Restart)您的 PC。

5A。此过程可让您知道它是否可以识别并解决问题。

5B。但是，如果无法识别问题，则会出现以下屏幕。因此^(Hence)，您可以尝试本文中列出的其余修复程序。

方法 4：更新 USB 驱动程序^{(Method 4: Update USB Drivers)}

要修复Windows 10上^{(Windows 10)}USB不断断开和重新连接的问题，您可以尝试更新USB驱动程序，如下所示：

1.  在搜索栏中输入^{(Search Bar)}设备管理器^{(Device Manager)}，然后单击打开^(Open)。

2. 转到通用串行总线控制器^{(Universal Serial Bus controllers)}并双击它。

3. 现在，右键单击USB 驱动程序^(driver) 并选择更新驱动程序^{(Update driver)}，如图所示。

4. 现在，单击自动搜索驱动程序。^{(Search automatically for drivers.)}

5A。您的驱动程序将更新^(update)到最新版本。

5B。如果您的驱动程序已经是最新的，那么您将收到消息：您设备的最佳驱动程序已安装^{(The best drivers for your device are already installed)}。

6. 单击关闭^(Close)退出窗口并重新启动^(Restart)您的 PC。

方法 5：回滚 USB 驱动程序^{(Method 5: Roll Back USB Drivers)}

如果USB设备在^(USB)Windows更新后开始出现故障，则回滚USB 驱动程序^{(USB Drivers)}可能会有所帮助。驱动程序的回滚^{(rollback of the driver)}将删除系统中当前安装的驱动程序，并将其替换为之前的版本。此过程应消除驱动程序中的任何错误并可能解决上述问题。

1. 启动设备管理器^{(Device Manager)}并像之前一样展开通用串行总线控制器^{(Universal Serial Bus controllers)}部分。

2. 右键单击​​ USB 驱动程序^{(USB driver )}并选择属性^(Properties)。

3. 现在，切换到驱动程序^{(Driver )}选项卡并选择回滚驱动程序^{(Roll Back Driver)}，如突出显示的那样。

4. 单击确定^(OK)以应用此更改。

5. 最后确认^(confirm)提示，重启Windows PC^{(restart your Windows PC)}，使回滚生效。

注意^(Note)：如果您的系统中“回滚驱动程序^{(Roll Back Driver)}”选项显示为灰色，则表示您的系统没有预装驱动程序文件或缺少原始驱动程序文件。在这种情况下，请尝试本文中讨论的替代方法。

另请阅读：^{(Also Read:)} 解决弹出 USB 大容量存储设备问题的 6 种方法^{(6 Ways to Fix Problem Ejecting USB Mass Storage Device)}

方法 6：重新安装 USB 驱动程序^{(Method 6: Reinstall USB Drivers)}

如果驱动程序的更新或回滚没有为您提供修复，则卸载通用串行总线^{(Universal Serial Bus)}控制器驱动程序并重新安装它们。请按照下面提到的步骤执行此操作。

1. 使用方法 4^{(Methods 4)}中提到的步骤，导航到设备管理器^{(Device Manager )}>通用串行总线控制器^{(Universal Serial Bus controllers, )}。

2. 现在，右键单击USB 驱动程序^{(USB driver)}并选择卸载设备^{(Uninstall device)}。

3. 通过单击下一个提示中的卸载来确认该过程。^(Uninstall)

4.重启^(Restart) 你的电脑^{(your PC)}。

5. 现在，访问制造商的网站^{(manufacturer’s website)}并下载相关驱动程序。例如，英特尔® USB 3.0 可扩展主机控制器^{(Intel ® USB 3.0 eXtensible Host Controller)}

6. 下载后，双击下载的文件^{(downloaded file)}并按照给定的说明进行安装。

方法 7：禁用 USB 电源管理设置
^{(Method 7: Disable USB Power Management Setting )}

有一个叫做USB Selective Suspend的功能，您的集线器驱动程序可以暂停单个端口，而不会影响其他端口的功能。如果人机接口设备^{(Human Interface Devices)}( HID ) 配置了此类设置，那么当您的系统空闲时，您有时可能会遇到USB不断断开和重新连接的问题。^(USB)因此^(Hence)，禁用自动USB挂起功能，如本方法中所述：

1.在搜索栏中输入^{(Search Bar)}设备管理器^{(Device Manager)}，然后单击打开^(Open)。

2. 现在，双击Human Interface Devices。

3. 右键单击​​遇到问题的USB 设备^(device)并选择属性。^{(Properties.)}

4. 在这里，切换到电源管理^{(Power Management )}选项卡并取消选中允许计算机关闭此设备以节省电源复选框。^{(Allow the computer to turn off this device to save power.)}

5. 最后，单击OK保存更改并重新启动^{(restart )}系统。

另请阅读：^{(Also Read:)} 在 Windows 10 中禁用 USB 选择性挂起设置^{(Disable USB Selective Suspend Setting in Windows 10)}

方法 8：禁用 USB 选择性暂停设置^{(Method 8: Disable USB Selective Suspend Setting)}

尽管选择性暂停功能可以帮助您节省电量，但​​这可能会断开USB和其他外围设备的连接。您可以按如下方式更改此设置：

1.通过Windows搜索栏^{(Search Bar)}启动控制面板^{(Control Panel )}。

2.现在，转到电源选项^{(Power Options)}并单击它。

3. 现在，选择 当前活动计划下的更改计划设置，如下所示。^{(Change plan settings)}

4. 在编辑计划设置^{(Edit Plan Settings )}窗口中，单击更改高级电源设置^{(Change advanced power settings)}。

5. 现在，双击USB 设置^{(USB settings)}。

6.然后再次双击USB选择性暂停设置^{(USB selective suspend setting )}

7. 在这里，点击On battery并从下拉列表中将设置更改为Disabled 。

8. 现在，单击已插入^{(Plugged in )}并从下拉列表中将设置更改为已禁用，如图所示。^{(Disabled )}

9. 最后，单击应用^{(Apply )}>确定^{( OK )}以保存更改。

注意：^(Note:)如果您的系统中有多个电源计划处于活动状态，请对所有这些电源计划重复相同的过程。

方法 9：运行 SFC 和 DISM 扫描^{(Method 9: Run SFC & DISM Scan)}

Windows 10 用户可以通过运行系统文件检查器自动扫描和^{(System File Checker)}修复他们的系统文件^{(repair their system files)}。它是一个内置工具，可让用户删除文件并修复USB不断断开Windows 10的问题。同样，您也可以运行DISM命令来检查和恢复系统运行状况。

注意：^(Note:)在运行扫描以获得更好的结果之前，我们将在安全模式下启动Windows 7 PC。^{(Windows 7)}

1. 按Windows + R键启动运行对话框。^{(Run Dialog Box. )}

2. 键入msconfig并按Enter打开 系统配置。^{( System Configuration.)}

3. 现在，切换到引导^{(Boot )}选项卡。然后，检查Safe boot选项并单击OK，如突出显示的那样。

4. 现在，通过单击Restart或Exit without restart确认提示。

现在，您的系统将以安全模式启动。

5. 在搜索栏中^{(Search Bar)}，键入cmd并单击以管理员身份运行^{(Run as administrator)}，如图所示。

6.输入sfc /scannow命令并按Enter键。现在，系统文件检查器^{(System File Checker)}将开始其进程。

7. 等待Verification 100 % completed 声明。完成后，以正常模式启动系统，并检查问题是否已解决。如果没有，请继续执行以下步骤。

8. 现在，再次启动命令提示符^{(Command Prompt )}窗口。

9. 一一键入以下命令，然后按 Enter^(Enter)：

DISM.exe /Online /Cleanup-image /Scanhealth 
DISM.exe /Online /Cleanup-image /Restorehealth

方法 10：更新 Windows 操作系统^{(Method 10: Update Windows OS)}

始终确保您使用更新版本的系统，以避免USB在^(USB)Windows 10或 Windows 7上不断断开和重新连接问题。

1.在搜索栏中输入^{(Search Bar)}检查更新^{(Check for updates)}并单击打开^(Open)。

2. 现在，单击右侧面板中的检查更新^{(Check for Updates)}。

3A。单击立即安装^{(Install now)}以下载并安装可用的最新更新^{(Updates available)}。

3B。如果您的系统已经是最新的，那么它将显示您是最新的^{(You’re up to date)}消息。

4.重新启动^(Restart)您的 PC 并确认问题已解决。

受到推崇的：^{(Recommended:)}

• 为什么我的互联网每隔几分钟就会断开连接？^{(Why My Internet Keeps Disconnecting Every Few Minutes?)}
• 修复罗技鼠标双击问题^{(Fix Logitech Mouse Double Click Problem)}
• 如何修复 iCUE 未检测到设备^{(How to Fix iCUE Not Detecting Devices)}
• 修复 Windows 10 中的键盘输入延迟^{(Fix keyboard Input lag in Windows 10)}

我们希望本指南对您有所帮助，并且您能够修复Windows 7、8、8.1 或 10 PC 上USB 不断断开和重新连接的问题。^{(fix USB keeps disconnecting and reconnecting)}让我们知道哪种方法最适合您。另外，如果您对本文有任何疑问或建议，请随时将它们放在评论部分。

Fix USB Keeps Disconnecting and Reconnecting

When you connect an external USB device, there are chances that it might not work on your syѕtem because of incompatibility issues. In such сases, you may encounter USB keeps disconnеcting аnd reconnecting issuе. Hence, if you are looking for solutionѕ to fix the ѕame, then you are at the right place! We bring a perfect guide to help you fix USB kеeps disconnecting issue on Windows 10.

Advantages of USB Drive

It is important to be able to connect your computer to an external USB drive for the following reasons:

• External USB drives can save personal files, work files, and game files.
• The USB drive can also store Windows installation files if you want to boot the Windows OS on another computer.
• USB drives are also used as system backup storage. If you lose the data on your computer, then a backup is essential to recover those lost files.

How to Fix USB Keeps Disconnecting and Reconnecting on Windows 10

There can be several reasons behind this issue, such as:

• Malfunctioning USB Port: It could cause the problem of USB keeps disconnecting and reconnecting when the USB port on your PC is faulty.
• Outdated USB Drivers: If the current drivers in your Windows PC are incompatible or outdated with reference to the system files, then you may face the said error.
• Enabled USB Suspend Settings: An enabled USB Suspend setting will eject all the USB devices from the computer if they are not in active use.
• Outdated Windows OS: In some circumstances, it could be that the Windows operating system running on your device is outdated.
• Power Saving Options: When there is an inadequate power supply, the USB drive turns off to save energy.
• Corrupt System Files: The issue can also be caused by corrupt system files on your PC.

A list of methods to fix USB keeps disconnecting and reconnecting issue has been compiled and arranged according to the level of difficulty. So, one by one, implement these until you find a solution for your Windows 7 or Windows 10 PC.

Method 1: Restart Your PC

Restarting the Windows PC helps to solve common glitches and errors. Hence, you should try this simple fix first.

1. Click on the Start menu.

2. Now, select the Power icon located at the bottom.

Note: The Power icon is found at the top in Windows 8 and at the bottom in Windows 10.

3. Here, click on Restart, as shown.

Method 2: Use a Different USB Port

The port that you are currently using may be malfunctioning and causing the USB keeps disconnecting and reconnecting issue. So, perform these basic checks:

1. Remove the USB from the current port and plug it into another USB port on your PC.

2. Connect another working USB to different ports of the PC and check if the same issue arises. In this way, you can determine if the port is faulty and need to be repaired or replaced.

3. Connect the USB to another computer to check if it’s working.

Also Read: Difference between USB 2.0, USB 3.0, eSATA, Thunderbolt, and FireWire ports

Method 3: Run Windows Troubleshooter

Few users have reported that this issue could be fixed by running the in-built troubleshooter in Windows 7,8, 8.1 or 10. The functions of troubleshooting include:

• Shutting down all the Windows Update Services.
• Renaming The C:\Windows\SoftwareDistribution folder to C:\Windows\SoftwareDistribution.old
• Wiping all the download cache present in the system.
• Rebooting the Windows Update Services.

Follow the given instructions to run it:

1. Press Windows  + R keys to launch Run Dialog Box.

2. Type msdt.exe -id DeviceDiagnostic and click OK, as shown.

3. Click Next on the Hardware and Devices troubleshooter.

4. Follow the on-screen instructions, and then Restart your PC.

5A. This process lets you know if it could identify and fix the problem.

5B. However, the following screen will appear if it could not identify the issue. Hence, you can try the remaining fixes listed in this article.

Method 4: Update USB Drivers

To fix USB keeps disconnecting and reconnecting issue on Windows 10, you can try updating the USB drivers, as follows:

1. Type Device Manager in the Search Bar and click Open.

2. Go to the Universal Serial Bus controllers and double-click on it.

3. Now, right-click on the USB driver and select Update driver, as depicted.

4. Now, click on Search automatically for drivers.

5A. Your driver will update to the latest version.

5B. If your driver is already up-to-date, then you will get the message: The best drivers for your device are already installed.

6. Click on Close to exit the window and Restart your PC.

Method 5: Roll Back USB Drivers

If the USB device began to malfunction after a Windows update, then rolling back the USB Drivers might help. The rollback of the driver will delete the current driver installed in the system and replace it with its previous version. This process should eliminate any bugs in the drivers and potentially fix the said problem.

1. Launch Device Manager and expand Universal Serial Bus controllers section as earlier.

2. Right-click on the USB driver and select Properties.

3. Now, switch to the Driver tab and select Roll Back Driver, as highlighted.

4. Click on OK to apply this change.

5. Finally, confirm the prompt and restart your Windows PC to make the rollback effective.

Note: If the option to Roll Back Driver is greyed out in your system, it indicates that your system does not have the pre-installed driver files or the original driver files are missing. In this case, try alternative methods discussed in this article.

Also Read: 6 Ways to Fix Problem Ejecting USB Mass Storage Device

Method 6: Reinstall USB Drivers

If the update or roll-back of drivers did not give you a fix, then uninstall the Universal Serial Bus controllers driver and install them again. Follow the below-mentioned steps to do so.

1. Navigate to Device Manager > Universal Serial Bus controllers, using the steps mentioned in Methods 4.

2. Now, right-click on the USB driver and select Uninstall device.

3. Confirm the process by clicking on Uninstall in the next prompt.

4. Restart your PC.

5. Now, visit the manufacturer’s website and download the relevant driver. For example, Intel ® USB 3.0 eXtensible Host Controller

6. Once downloaded, double click on the downloaded file and follow the given instructions to install it.

Method 7: Disable USB Power Management Setting

There is a feature called USB Selective Suspend, in which your hub driver may suspend individual ports, without affecting the function of other ports. And if the Human Interface Devices (HID) are configured with such settings, then you may sometimes face USB keeps disconnecting and reconnecting issue, when your system is idle. Hence, disable the automatic USB suspend feature as explained in this method:

1. Type Device Manager in the Search Bar and click Open.

2. Now, double-click on Human Interface Devices.

3. Right-click on the USB device on which you encountered the problem and select Properties.

4. Here, switch to the Power Management tab and uncheck the box Allow the computer to turn off this device to save power.

5. Finally, click on OK to save the changes and restart your system.

Also Read: Disable USB Selective Suspend Setting in Windows 10

Method 8: Disable USB Selective Suspend Setting

Even though the selective suspension feature would help you to conserve power, yet this may disconnect the USB and other peripherals. You can change this setting as follows:

1. Launch Control Panel through the Windows Search Bar.

2. Now, go to Power Options and click on it.

3. Now, select Change plan settings under your current active plan, as highlighted below.

4. In the Edit Plan Settings window, click on Change advanced power settings.

5. Now, double-click on the USB settings.

6. Then again, double-click on the USB selective suspend setting

7. Here, click on On battery and change the setting to Disabled from the drop-down list.

8. Now, click on Plugged in and change the setting to Disabled from the drop-down list as shown.

9. Finally, click on Apply > OK to save the changes.

Note: If you have multiple power plans active in your system, repeat the same procedure for all these power plans.

Method 9: Run SFC & DISM Scan

Windows 10 users can automatically scan and repair their system files by running System File Checker. It is a built-in tool that lets the user delete files and fix the USB keeps disconnecting Windows 10 issue. Similarly, you can also run DISM commands to check & restore system health.

Note: We shall boot Windows 7 PC in safe mode before running the scans for better results.

1. Press Windows + R keys to launch Run Dialog Box.

2. Type msconfig and hit Enter to open System Configuration.

3. Now, switch to the Boot tab. Then, check the Safe boot option and click on OK, as highlighted.

4. Now, confirm the prompt by clicking on either Restart or Exit without restart.

Now, your system will be booted in safe mode.

5. In the Search Bar, type cmd and click on Run as administrator, as shown.

6. Type sfc /scannow command and press the Enter key. Now, the System File Checker will begin its process.

7. Wait for the Verification 100 % completed statement. Once done, boot your system in normal mode, and check if the issue is resolved now. If not, then continue following the steps.

8. Now, again launch Command Prompt window.

9. Type the following commands one by one and hit Enter:

DISM.exe /Online /Cleanup-image /Scanhealth 
DISM.exe /Online /Cleanup-image /Restorehealth

Method 10: Update Windows OS

Always ensure that you use your system in its updated version to avoid USB keeps disconnecting and reconnecting issue on Windows 10 or Windows 7.

1. Type Check for updates in the Search Bar and click Open.

2. Now, click Check for Updates from the right panel.

3A. Click on Install now to download and install the latest Updates available.

3B. If your system is already up-to-date, then it will show You’re up to date message.

4. Restart your PC and confirm that the issue is resolved.

Recommended:

• Why My Internet Keeps Disconnecting Every Few Minutes?
• Fix Logitech Mouse Double Click Problem
• How to Fix iCUE Not Detecting Devices
• Fix keyboard Input lag in Windows 10

We hope that this guide was helpful and you were able to fix USB keeps disconnecting and reconnecting issue on your Windows 7, 8, 8.1, or 10 PC. Let us know which method worked best for you. Also, if you have any queries or suggestions regarding this article, then feel free to drop them in the comments section.

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